jepler
exit status
it would be useful if cropgui returned a non-zero exit status in cases where it terminates without doing any cropping
What's the use-case?
I would find some kind of indicator of whether it cropped the file useful, but I don't think exit status with no special flags passed is appropriate--that should be for errors. Also, cropgui can accept multiple command-line arguments and crop each, if you're not aware. Maybe outputting a list of cropped files to stdout would be nice, because then I wouldn't have to reverse-engineer the naming convention in my shell scripts.
What's the use-case?
more efficient scripting
I don't think exit status with no special flags passed is appropriate--that should be for errors
fair enough but grep and others use exit status as I suggest (i.e. not strictly for errors but also for command failure)
% echo abc | grep x
% echo $?
1